Radially modulated nitrogen distribution in CNx nanotubular structures prepared

2019-11-09 00:47:24

chemical nitrogen layers Hollow CVD

责任者: Suenaga, K.;Yudasaka, M.;Colliex, C.;Iijima, S. 单位: JST, Meijo Univ., Nagoya, Japan 来源出处: Chemical Physics Letters(Chem. Phys. Lett. (Netherlands)),2000/01/21,316(5-6):365-72 摘要: Chemical mapping with sub-nanometer-scale resolution across the CNx tubular nanostructures synthesized by chemical vapor deposition (CVD) has revealed nitrogen enrichment at the periphery and at the inner hollow while these tubules do not contain much nitrogen in the graphitic layers. This result indicates that the solubility of nitrogen in the graphitic layers is slight, at least under the catalytic CVD condition. It is supposed that the nitrogen atoms are bonded to the edges of layers, otherwise they form amorphous carbon nitride in the nanotube hollow 关键词: carbon compounds;carbon nanotubes;catalysis;chemical vapour deposition;radially modulated N distribution;CNx nanotubular structures;CVD;Ni phthalocyanine;chemical mapping;subnanometer-scale resolution;chemical vapor deposition;inner hollow;graphitic layers;solubility;catalytic CVD;amorphous CN;nanotube hollow